Wrench



Dec. 23, 1924. 1,520,171 Y* v G. o. CARLSON i WRENCH Filed neo. e, 1923 fawllllllll s. Y

Gwszfve'. Carlson,-

Patented Dec. 23, 1924..

LZ-,itl

GUSTAVE O. CARLSON, OF WETHERSFIELD, CONNECTICUT, ASSIGNOR F ONE-HALF T0 HENRY HANSON, OF MIDDLETOWN, CONNECTICUT. if

WRENCH. l

Application filed December To all whom it may concern:

-A vBe it known that I, Gis'rnvn O. CARLSON,y

. a citizen of the United States, residing at Vether-sfield, in the county of Hartford and Stateof Connecticut, have invented certain new and useful improvements in l/Vrenches,

Y, of which the following is a specification,

among other things, to provide a tool ofv this character that will be highly efficient,

may be easily adjusted, withstand the maximum strain, and composed of the-minimum number of parts that may be constructed ,l and assembled at the lowest possible cost. v @To these, and other ends, my invention p-:having certain details of construction and" combinations of parts, as will bel hereinafter particularly consistsin the new and improved wrench,

described and more pointed out in the claims.

i and improved wrench, 'partly in section,

Referring to the drawings, in which likev `numerals of reference designate like parts j in the several figures; j

Figure `1 is a side elevation of my new I `with one of the jaws in its open position;

Figure 2 is a similar view with the rock- Y the shoulder 30 rests upon the anvil face 33 ving jaw in its `closed position;

Figure'3 is an enlarged transverse view j of the parts, taken generally upon line 3-3 f of Figure 1; and

- Figure 4 is a similar view, taken generally upon line 4 4 of Figure l.

My improved wrench is constructed with a handle 10, having acylindrical portion 11 and a portion with flat sides 12 and rounded ends 13, connected by the tapered 'portion 14. This handle is preferably made from a single piece of'tubing which may be substantially the same shape and diameter as the cylindrical portion 11, and by means of proper tools, shaped as shown.

Within the handle is the sliding jaw 16 having a head portion 17 with teeth in the Y gripping face thereof, as is usual, ashank portion 18, which has a flat inner face 19, and the outer end of which is substantially the same as that of the inside of the flattened portion' of the handle 1() and a threaded cylindricalvshank 20.

Rotatably mounted Within the cylindrical` 6,1923. serial No. 678,907.

portion 11 of the handle, is the sleeve21, which is interiorly threaded at 22 so as to receive the threaded shank 2O of the sliding "Illhis sleeve is formedwith a collar Q23, .which abuts against the end of the handle 10 to limit inward movement of the sleeve.

`Outward movement is prevented by a stud 24 which is fixed in the handle and projects finto a groove 25 around the outside of the sleeve. A screw,or.afdetent in the handle, may be substituted for the stud 24,', if so desired. The knurled `surfaces 26 provide gripping surfaces to facilitate rotation of the sleeve, whereby the sliding jaw receives endwise movement.

The rocking jaw 27 also has "a headportion 28 with teeth in the gripping face, as is usual; a shank 29, with a shoulder 30, at

its inner end, and an inclined inner flat face on the end of the handle 10, which is at a different angle to the `axis of the handle than the remaining portion of the same the rocking jaw is in substantially the posiy tion shown in Figure 1, although lthe space therebetween and the siding jaw may be, and is in many cases, considerably less than that shown. Then, as pressure is applied through the handle; 10,v the rocking jaw closes to substantially the position shown in Figure 2, at which time the jaws have a fixed, definite and positive unyielding grip.

There are minor changes and alterations that may be made within my invention, aside from those herein suggested, and I would therefore have it understood that I do not limit myself to the exact construe` tion herein shown and described.

'What I claim as new and desire to secure by Letters Patent, is

l. In a wrench; a handle; a jaw movably mounted therein; a second jaw mounted in the handle and having such engagement therewith as to permit the saine to move toward and away from the first named jaw in apath at substantially a right angle to the shank of the first named jaw; and a rotary member having engagement with one only of the jaws and whereby movement is imparted to said latter jaw relatively to the handle, Vthe movement of the second jaw in its open position being limited by the first named jaw.

2. In a wrench; a handle having a hollow cylindrical portion and an oval portion; a

jaw slidably mounted therein; a member rotatably mounted in said handle and having engagement with the aw whereby the movement thereof imparts movement to the aw; a second jaw having `such engagement with the handle that it may rock relatively thereto and limited in its outward movement by engagement with the first named jaw.

3. In a wrench; a handle having a hollow cylindrical portion and aiioval portion; a jaw slidably mounted therein; a member rotatably mounted in said handle and having engagement with the jaw whereby the movement thereof imparts movement to the aw;

a second jaw having such engagement with the handle that it may rock relatively thereto and limited in its movement in its open position by engagement with the first named jaw and in the other direction by the handle.

4. In a Wrench; a handle having an anvil face; a jaw movably mounted thereon through a rotary member in part within the handle; a second jaw mounted in said handle having such engagement therewith as to permit the same to move toward and away from the first mentioned jaw in a path at substantially a right angle to the shank thereof, said second jaw being limited in its movement in one direction by engagement with said anvil face and the first mentioned jaw, and in the other direction by the first named jaw.

5. In a wrench; a handle having an anvil face thereon; a jaw movably mounted therein; rotary means connected with and in part within said handle for moving said jaw; a

second jaw having an intermeshing engagement with said handle and having ashoulder thereon which engages said anvil face when in one of its positions and an angular face which engages the first named jaw when in another of its positions.

6. In a wrench; a handle having an opening in one wall thereof transverse to the length thereof; a jaw movably mounted in said handle means connected with said handle for imparting movement to said jaw; and a second jaw mounted in said handle, and having a part thereon that projects into said opening and a face that contacts with the first named jaw when in one of its positions.

7. In a wrench; a handle; a member rotatably held in the handle against endwise movement and having a part thereon exposed outside of the handle; a jaw movably mounted within the handle and having a threaded shank in engagement with said member; and a second jaw having an interineshing engagement with the handle whereby it may rock relatively to the handle toward and away from the jaw and deriving no movement from said member, the second jaw being limited in its outward movement by the first named jaw.

8. In a wrench; a hollow handle, one portion of which has substantially flat sides connected with rounded ends and terminating at one end in a cylindrical portion; a sleeve rotatably mounted within said cylindrical portion and having a part thereon exposed outside'of the handle; a jaw'held against rotation within and by the handle and having a threaded shank thereon in engagement with the sleeve; and a second jaw having an iiitermeshing engagement with the handle and movable towardv and away from the jaw.

9. In a wrench; a handle; a member rotatably held in the handle against endwise movement andk having a part thereon eX- posed outside of the handle; a jaw movably mounted within the handle and having a threaded shank in engagement with said member; and a second j aw having an intermeshing engagement with the handle whereby it may rock relatively to the handle toward and away from the jaw and deriving no movement from said member, said second jaw having a shoulder thereon which rides against one end of said handle during its movement toward and away from the first mentioned jaw and an inclined face which engages the first named jaw when the second jaw is in one of its positions'.

10. In a wrench; a handle; a'inember rotatably held in the handle against endwise movement and having a part thereon eX- posed outside of the handle; a jaw movably mounted within the vhandle and having a threaded shank in engagement with said member; and a second jaw having a lateral 'projection thereon which extends through one wall of the handle whereby it has an intermeshing engagement with the handle and will rock relatively to the vhandle toward and 'away fromthe jaw, deriving no movement from said member and an inclined face which engages the first named jaw when the second javv is in one of its positions.

ll. In avvrench; a handle; a sleeve arranged relatively to the handle whereby a portion thereof is Within the handle and another portion projects beyond the end of the handle; means for rotatably connecting the sleeve With the handle and holding the same against axial movement; a jaW slidable Within the handle and having a shank thereon that is engaged and moved by the sleeve; and a second jaw having a. separable connection with the handle and held against endvvise movement by the j avv. a

l2. In a Wrench; a handle, having an opening through one Wall thereof; a javv movably mounted Within the handle; a second jaw having a projecting part thereon; and means for moving the first named j avv relatively to the handle, the relation of the parts being such that the second jaw is placed Within the handle with the projecting part thereon Within said opening before the first named jaw is placed in the handle, and after both jaws are positioned the second jaw is held from disengagement with the handle by reason of the first named j aw and the engagement of the projecting part thereon with the said opening in the handle.

13. In a Wrench; a handle havingl an opening in one Wall thereof; a jaw movable Within the handle; a second jaw having a part thereon that projects into said opening; said jaws and handle being assembled by first placing the second jaw in the handle With the part projecting therefrom entering the aforesaid hole and then placing the first mentioned javv Within the handle, Which thereby prevents the disengagement of the second mentioned j avv from the handle but permitting movement relative thereto in a path at an angle to the a-Xis of the handle.

In testimony whereof; I have hereunto affixed my signature.

GUSTAVE O. CARLSON. 

